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Sherex's Optisert is the best performing round body rivet nut on the market today. 

With diamond-shaped wedges underneath the head that give it a superior grip, manufacturers can rely on the spin-out performance of this innovative fastener. The Closed End Optisert comes with a standard plastisol seal that helps keep viscous material out of the base material. Non-sealed closed-end options are available as well, along with other seals. 

Ideal applications for Optisert include softer

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Unit of Measure

Specifications

Thread Size

5/16-18 UNC

Grip Min.

0.138 in

Grip Range
(Min.-Max.)

.138-.236

LB ±.015
(inch)

1.39

Grip Max.

0.236 in

Option- Ends

Closed End (Add suffix B" to Part Number) Open End (No suffix added to Part Number)"

HD (±.020/±.025*)
(inch)

0.857

HT
± .004

.082

D (Max.)
(inches)

0.531

ILB (Max.)
(inch)

1.083

ITD (Ref.)
(inch)

1.063

Hole Size
+.006/-.000 (inches)

0.531